Sole-leveling machine



3 Sheets-Sheet l` (No Model.)

B. C. JUDD. soLB LBVELING MAGHINE.

Patented Aug. 20, 1895.

(No Model.) 3 Sheets--SheetA 2.

E. C. JUDD.

- SOLE LBVELING MACHINE. No. 545,038. Patented Aug. 20, 18

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(No Model.) 3 Sheets-Sheet ,'34 E. C. JUDD.

SOLE LBVELING MACHINE. Y No. 545,038. Patented Aug. 20, 1895.

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EDVARD C. JUDD, OF BOSTON, MASSACHUSETTS.

SOLE-LEVELING MACHINE.

SPECIFCATION forming part of Letters Patent No. 545,038, dated August 20, 189 5.

Application filed .Tune 26, 1893. Serial No. 478,785. (No modeLl Patented in England October 21,1893,N0 19,876-

To all whom t may concern:

Beit known that I, EDWARD G. JUDD, a citi zen of the United States, residing at Boston, Suffolk county, State of Massachusetts, have invented certain new and useful Improvements in Sole-Leveling Machines, (for which I have obtained a patent in Great Britain, No 19,876, dated October 2l', 1.893,) of which the following is a full, clear, and exact specication.

This invention relates to sole-leveling inachines for leveling the soles of boots and shoes after they leave the sewing-machine.

The object of the present invention is to provide for using a plurality of levelingrolls supported by independent carriers, whereby all parts of the sole may be perfectly and quickly acted upon.

The invention also has for its object to provide new and improved mechanism for adjusting or varying the travel of a levelingroll relatively to the heel or to the ball or fore part of the sole of a boot or shoe.

The invention also has for its object to provide leveling-rolls which operateA substantially simultaneously, one upon each side of the bottom of the sole, and are adjusted to the contour of opposite sides of the bottom of the last, whereby the rolls may be adjusted to suit the conditions required, according to the varying contour or shape of shoe-soles, thus rendering it possible to practicably use the same rolls on soles which greatly vary in shape.

The invention also has for its object to provide a machine-in which both the longitudinally-movable member and the laterally-movable member of the jack may be oscillated automatically. by mechanical contrivances instead of manually or by hand.

The invention has otherobjects, which will hereinafter appear.

To accomplish the objects of my inventionl Iemploy the mechanism hereinafterdescribed and claimed, reference being made to the accompanying drawings, in which- Figure l is a side elevation ot' a machine embodying my invention, parts of the frame appearing in section. Fig. 2 is a top plan view of the same. Fig. 3 is a front elevation of the same. Fig. 4 is a sectional view taken on the line fl el, Fig. 1. Fig. 5 is a diagram indicating the operation of the adjusting mechanism. Fig. 6 is a detail sectional view 'taken on the line 6 6, Fig. 1. Fig. 7 isa detail view of the shank-rolls. Fig. 8 is a detail view of mechanism for oscillating the laterY ally-movable member of the jack. Fig. 9 is a diagram indicating the operation ofthe mechanism shown in Fig. 8, and Figs. lO and l1 are detail views showing modifications in the construction of the shank-rolls.

Similar letters' of reference indicate correspending parts in. all the figures.

In order to enable those skilled in the art to make and use my invention,I will now describe the same in detail, referring to the drawings, wherein- The letter a indicates the main frame of the machine, which may be of any construction lsuitable for the purpose in hand, and b a yoke or tree pivoted, as at b', to the frame in such manner as to osollate longitudinally of Athe machine. The yoke or tree bis provided with a secondary yoke c, pivotally supported and having a central standard c', adapted to carry the last. The yokes l) and c and standard c constitute a jack by which the shoe is supported during the leveling of the sole thereof.

The letter CZ designates the driving-shaft supported in hearings on the frame a and carryinga bevel-gear d', which meshes with a similar gear d2 on a vertical shaft cl3. Said vertical shaft carries a worm d4, which engages a gear d5, mounted on a horizontal shaft d, said shaft carrying a crank CF, to which is connected one end of a rod d3, the opposite end of which is connected with an arm (19, fastened to one of the journals of the jack-tree b. It will be understood that the latter is slowly oscillated through the media described. The shaft d6 carries a bevel-gear e., which meshes with a similar gear e on a shaft e2, which is supported in bearings on the frame a, and extends at right angles to the said shaft d6. A disk e3 is fixed on the end of the shaft c2 and has a cam-groove e4 in its outer face. This cam-groove is partly in a plane which includes the center of oscillation or axis of the tree b. A rock-shaft e5 is supported in a bearing on the under side of the tree b and has an arm e on one end, which arm carries a roller e7 in engagement with the Y the tree b, by reason of the fact that the camcrankfz hasa vertically-extending arm, which groove is brought into the plane of the axis of the tree, whereby the roll c7 engaging it Will have a very slight movement. The sides of this roller are rounded to prevent it from binding in the groove.

An eccentricfon the driving-shaft dis connected by a rodf With one arm of a bellcrank f2, which is pivoted by means ofa shaft f3, supported on the main frame a. The bellis jointed to a rod f4, and the latter has a forked outer end Whose branches are jointed to a roll-carrier composed of levers f5, pivotally supported by arms f6,pivoted to the main frame ct, said levers forming bearings for the roll f7.

The levers f5, composing the roll-carrier, are pivoted intermediate their extremities to the armsf, and the roll f7 is adapted to operate upon the ball or fore part of the Shoesole and has an oscillatory motion imparted to it as it operates on the sole.

The driving-shaft d is provided with an eccentric g, connected by a link or rod g With the horizontal arm of a bell-crank lever g2, pivoted to an arm g3 of a rocker-shaft or sleeve g", mounted on the shaft f3, and provided with an arm g5, extending in a direction opposite the direction of the arm g3. The vertical arm of the bell-crank g2 is pivotally connected with a rod g, having a forked outer end, each of Whose branches is constructed with a flat head Q7, which presents a verticalnsurface, by which means a head or 'Y carrier is provided for supporting 0r carrying the independent bearings of two rolls g, suitably arranged relatively to each other to opcrate on a part of the sole of a shoe supported by the jack` hereinbefore alluded to. The bearings of the rolls 99 are mounted on the head or carrier g?, Which is arranged to be reciprocated in a plane above the shoejack, and the bearings of the rolls are provided with means whereby they can be adjusted into various positions and rigidly clamped or held Y in the position to which adjusted, whereby the axes of the rolls are adjustable to varying angles relatively to one another. To accomplish this adjustment Iprovide each bearing with a plate g8, having a curved or segmental slot gio, Fig. 7, through which a clamping-bolt passes into the head or carrier 97. By loosening the clam ping-bolts the roll-bearings can be moved in the arcs of circles to adjust the axes of the rolls g9 into the position desired, after which the bolts can be tightened to rigidly clamp or hold the roll-bearings in fixed positions on the head or carrier gi.

, The devices described enable the rolls 99 to be adjusted to suit the conditions required according to the Varying contour or shape of shoe-soles, thus rendering it possible to practicably use the same rolls on soles which greatly vary in shape, particularly the shanks of soles which vary in contour from a slight curve to an approximately V shape in crosssection. In the present instance the rolls g are designed to operate on the shanks of the soles, and, obviously, the rolls can be independently and quickly adjusted to varying angles for adapting the rolls to Shanks Which are more orless crowning. It will be obvious that the mechanism described as being connected with the said rolls provides for their reciprocation during the operation of the machine.

The rod gb is made lengthwise extensible through the medium of a slot and a bolt and nut, as indicated at h, Fig. l, for the purpose of adjusting the shank-rolls relatively to the roll f7, which operates ou the ball or fore part of the sole. The adjustable rolls g" can be used for leveling the ball or fore part of the sole, as Well as for operating on the shank of the sole. as compared to the speedv of the reciprocating or vibrating head or carrier g7, which carries the shank-rolls.

An arc-shaped adjustment-Way i, of which the length of the arm t" is the radius, is fixed on one of the journals of the slowly-moving jack yokeor tree b and extends on each side of said journal. This adjustment-Way receives a pin carried by one end of the rod i', which, at its other end, is pivotally connected to the arm g5 in such manner that the travel of the shank-rolls Q9 relatively to the heel or theball or fore part of the sole can be changed or regulated by simply adjusting one end of the rod z" in the adjustment-Way z'. By reference to the diagram, Fig. 5, it will be seen that by moving the pin of the rod t" to apoint on the upper side of the center of oscillation of the tree or yoke the rearward movement of the latter moves the pivot of the bell-crank g2 forward, and the travel of the rolls gf is correspondingly increased toward the heel. By connecting the rod t" on the lower side of the center of oscillation of the tree or yoke l), the opposite effect is produced-that is, the travel of the rolls toward the ball is increased. When the pin of the rod z" is` adjusted and secured in a fixed position to the adjustment- Way i at a point above or below the center of oscillation of the tree or yoke b, the rocker shaft or sleeve g4 is rocked, the pivot of the bellcrank g2 is continuously shifted back and forth, and consequently the rod gG and rolls o9 are caused to move back and forth, and at the same time are Vibrated bythe oscillation of the bell-crank g2. Therefore the rolls have a compound movement, Which is very advantageous in leveling the sole. As regards this compound movement, the leveling roll or rolls may be of any suitable construction.

The means described also automatically vary the longitudinal inclination of the jack The jack or tree b rocks slowly IIO and the relative position of the roll, while enabling the travel of the roll to be changed or As before stated,the segmental adjustmentway t' is fixed to the pivot or shaft of the longitudinally-rocking jack b, and consequently the way i is rocked in unison with the jack. It the front end of the rod t" is adjusted and fixed to the way at a p oint above or below the center of the pivot or shaft of the jack, the rocking ot the wayimparts a rocking motion to the rocker shaft or sleeve g4 through the medium of the crank g5. The arm g3, Fig. 6, of the rocker shaft or sleeve g4 carries the pivot of the bell-crank lever g2, and as the rocker shaft or sleeve oscillates or rocks it bodily carries with it the bell-crank lever g2, thereby slowly shifting the rod g longitudinally, ,while at the same time the rod Q6 is being reciprocated bythe oscillatory movement of the bellcrank lever g2. By means of a treadlej and rodsj, `connecting the same with the rods f4 and g, the rolls are brought down upon the sole and said treadle is held down by a pivoted latchjz. The springsj3 on the rods and a counterbalancing-weightj5 on the treadle tend to raise the rolls from the sole.

-While the shank-rolls g9 are shown and described as supported so as to be adjusted axially, with the point of their meeting edges at the lower side as a center, they may be constructed as illustrated in Fig. 10, where two rolls 7a, with convex exterior contours and eggshaped confronting ends, are shown. In Fig. Il the rolls fm are shown as overlapping and supported in holders fm', like the holders g8, whereby they may be adjusted axially. With either of these constructions, scoring of the shank of the shoe-sole would be prevented.

Where two rolls or two sets of rolls are employed, one to act on the shank and the other on the ball of the sole, a convex roll such as shown in Fig. l0 may be employed, and in some cases will be found of special advanA tage-as, for instance, in a shoe where it is desired to roll the ball portion of the sole perfectly fiat, while the shank is rounded. In such a case as this a concaved roll such as ordinarily employed would round the ballportion of the sole under oscillation of the jack,`whereas with a convex roll the ball could be made flat.

or vary the extent of, motion or travel of the shank-rolls, and that this motion iscontrolled by the oscillation of the jack yoke or tree I); but I do not wish to be understood as contin ing myself to this exactconnectiom because other adjustable mechanism may be provided in the combination Afor changing or varying the extent of motion or the. travel of the shank roll or rolls.

The back and forth or traversing motion of the roll or rolls Q9 is comparatively slow as compared with the rapid Vibration of the roll or rollsduring the back and forth or traversingmotion. In the operation ot the rollsg9 they act on the sole a less distance in most cases than the distance acted' on by the roll f7. The shank of a shoe is generally not so long as the fore part or ball portieri, and` therefore itis important to cause the shankrolls to recede when they reach a given point on the shoe and start back. Otherwise they would pass ott of the heel portion or rear end of the sole. The improvements described adapt the shank-rolls to acton the shank only the distance desired, and as the jack moves backward and forward the shank-rolls act on the sole in proportion to the travel of the jack. If it is desired to cause the shankrolls to pass up onto the toe of the sole or back on the heel portion thereof a greater distance than is necessary on ordinarywork, the adjustment of the rod ,as hereinbet'ore explained, secures the desired movement. The provision of adjustable mechanism for changing the travel of the roll or rolls j relatively to the heel or the ball or fore part of the sole is an important feature in a soleleveling machine.

Having thus described my invention, what I claim isC l. In a sole-leveling machine, a roll or rolls for acting on the ballot the sole, a roll or rolls for acting on the shank,'independent carriers supporting the rolls, and independent means for operating said carriers.

2. In a sole-leveling machine,a roll or rolls for acting on the ball of the solo, a roll or rolls for acting on the shank,independent carriers supporting the rolls, and means for adjusting the distance between the carriers.

3. The combination with a supporting and forming last, of a pair of longitudinally-reciprocating levelingrolls operating substantially simultaneously, one upon each side ot the bottom of the sole, and mechanism for adjusting said rolls to the contour of opposite sides of the bottom of the last.

4. Thelcombination of a pair of leveling rolls operating substantially simultaneously, one upon each side of the bottom of a sole, mechanism for adjusting said rolls to the contour of opposite sides of the bottom of the last supporting said sole, and a leveling-roll operating upon the central portion oli the bottom of said sole.

5. In an organized sole-leveling machine, the combination with a jack for supporting a shoe, and a carrier arranged above the jack, of roll-bearings adjustably mounted on the carrier, rolls arranged in the roll-bearings and having the angularity of their axes varied by the adjustment of said bearings, and devices IOO for rigidly securing the roll-bearings directly to the carrier in the desired position ot' adjustinent.

. 6. In an organized sole-leveling machine, the combination with a jack for supporting a shoe, and a reciprocating carrier arranged above the jack, of roll-bearings mounted on the carrier and adjustable independently of one another, rolls mounted in said independently adjustable bearings and having the angularity of their axes varied by the adjustment of the said bearings, and devices for rigidly securing the roll-bearings to the carrier in the desired position of adjustment.

7. In an organized sole-leveling machine, the combination with a jack for supporting a shoe, and a carrier arranged above the jack, of independently adjustable roll-bearings provided with curved or segmental slots, rolls mounted in said independently adjustable bearings and having the angularity of their axes varied by the adjustment of the rollbearings, and screws passing through the slots of the roll-bearingsinto the carrier for rigidly securing the said bearings to the carrier in the desired position of adjustment.

8. In an organized sole-leveling machine, the combination With a jack for supporting a shoe, a reciprocating leveling-roll for acting on the ball or fore part of the sole, and a reciprocating carrier, of shank rolls having bearings independently adjustable on the said carrier to vary the angularity otthe axes of the shank rolls and adapt the latter to sole shanks which Vary in contour, devices for rigidly holding the bearings of the shankrolls in their positions of adjustment, and means for reciprocating the leveling-roll and the carrier.

9. In a sole-leveling machine, rolls supported end to end and axially adjustable and having their confronting ends rounded or convexed.

10. In a sole-leveling machine7 the combination with a reciprocating leveling-roll, a longitudinally oscillating jack, and mechanism for automatically reciprocating the leveling-roll and oscillating the jack, of adjustable connections positively connecting said roll and said jack for changing or regulating the travel ot' the roll relatively to the jack, substantially as described.

ll. In a sole-leveling machine, a jack for supporting the shoe, the same comprising a yoke or tree pivotally supported and arranged to move on the pivot in the direction of length cam-groove, and an arm connecting it With the yoke.

12. The combination of a longitudinally movable jack, a vibrating fore-part roll, a

vshank-roll, means for moving the jack longitudinally and vibrating the fore-part and shank rolls, and mechanism for automatically changing the position of the shank-roll longitudinally with relation to the fore-part roll during the vibratory motion of the rolls.

.13. The combination with a'longitudinally movable jack, a vibrating leveling roll, and means for moving the jack longitudinally, of a rocker-shaft, means for rocking said rocker- Shaft, a lever pivotally mounted on the rocker-shaft and connected with the levelingroll, and devices for vibrating the lever to impart a vibratory motion to theleveling roll.

14. In a sole-leveling machine, the combination of an oscillating jack having an adjusting-Way at its center of oscillation, a reciprocating leveling-roll, a lever'which reciprocates said roll, and a rod connecting the pivot of said lever with the adjusting-way on the jack, as and for the purpose described.

l5. In a sole-leveling machine, the combination of an oscillating jack having an arcshape'd adjusting-Way at its center of oscillation, a leveling-roll or rolls for acting on the ball of the sole,a roll or rolls for acting on the shank, a bell-crank lever connected with the ball-roll or rolls, a shaft supporting said level', means for actuating the lever, a sleeve mounted on said shaft and having oppositely-extending arms, a bell-crank lever supported by one of said arms and connected with the shank-roll or rolls, means for vibrating said lever, and a rod connecting the other arm of the sleeve with the adjustment-Way on the jack-tree. t

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 19th day of June, A. D. 1893.

EDWARD C. JUDD.

-Witnesses: l

C. F. BROWN, F. PARKER DAvIs.

IOC 

